Bus

You must choose at least two actions each round, but you may choose more up to the number of action stones you have remaining; some actions (buying a bus, clock, starting player) can be taken by only one player that round and other actions can be chosen by multiple players (page 2).

The maximum number of buses is the number of buses owned by the player who has the most buses, and it immediately determines how many passengers, line expansions and buildings players must add when those actions are taken (page 2).

You may only build parallel in two cases: (1) if no empty streets are available at your head you may continue parallel until you reach an empty street, or (2) if your head is on the same crossing as another player's head (and all players with lines on that stretch also have their heads there), you may build parallel until the next crossing where you must take an empty street if available (page 3).

When you close a circle the line’s heads remain at the crossing where the circle was closed (giving you two heads there), and you must place the involved action stone on that crossing so everyone can see from which point you must connect next round (page 3).

Each bus can carry one passenger; you may only transport passengers who ‘want to get away’ (i.e., are dissatisfied with the building on their crossing) and you must place them into an empty building of the correct type that lies on your own line, scoring one point per passenger moved (page 5).

If you stop time you take one clock stone (which counts as one minus point) and the time indicator stays where it is; if the last clock stone is taken the time-space-continuum ruptures and the game ends immediately with immediate scoring — further actions in that round are not played (page 5).